How to Take Rough Hole Measurements

Mastering Precision: A Step-by-Step Guide to Measuring Rough Holes for your RV Window or Door Replacement


Embarking on the journey of an RV window or door replacement is a rewarding but meticulous task that demands precision from start to finish. One of the key steps in this process is obtaining accurate measurements for the rough hole, ensuring a seamless fit for your new window or door.  In this step-by-step guide, we will break down the steps to help you achieve precise measurements and set the stage for a successful RV window or door replacement.

Step 1: Remove The Old Window or Door. 

Rough Hole dimensions are determined by the hole in the RV or Motor Home that needs to be filled with a window or door. You cannot determine rough hole dimensions without taking the RV window or door out of the RV or Motor Home. The RV window or door will be manufactured smaller than the rough hole dimensions to ensure that it will fit into the rough hole opening. 

Step 2: Gather the Right Tools

Before you dive into the measurement process, ensure you have the necessary tools at your disposal. You will need a tape measure, a pencil, and a notepad to record your exact measurements. A second set of hands can also prove invaluable, especially when dealing with larger windows or doors.

Step 3: Measure The Width, Height, and Depth.

Use the tape measure to measure the width of the rough hole from side to side, starting from the inside edge of the window or door frame. Use the tape measure to measure the height from the top to the bottom of the rough hole, and from the inside edge of the window or door frame. Use the tape measure to measure the width of the rough hole from the front to the back. Measure in two separate locations to make sure it is square. For accuracy, repeat each measurement at least twice, ensuring consistency. Make sure and document your accurate measurements.

Step 5: Account For Frame Overhang

When measuring the width and height, be mindful of any frame overhang. Measure from the exterior edge of the frame to the opposite exterior edge. This accounts for the space the new window or door frame will occupy.

Mastering the art of obtaining rough hole measurements for your RV window or door replacement is a critical step toward a successful and hassle-free installation.

 Keep in mind: The door or window is a custom-manufactured part that is fabricated to your specifications, and is non-returnable, and non-refundable. By following these steps with care, you’ll be well-equipped to choose the right replacement window and ensure a seamless fit for your RV’s new view of the world.


Click on this link for a demonstration video of removing a baggage door and obtaining rough hole measurements.